// SPDX-License-Identifier: GPL-2.0-only
/******************************************************************************
*
* Copyright ( c ) 2007 - 2014 Intel Corporation . All rights reserved .
* Copyright ( C ) 2018 , 2020 Intel Corporation
*
* Portions of this file are derived from the ipw3945 project , as well
* as portions of the ieee80211 subsystem header files .
*****************************************************************************/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <net/mac80211.h>
#include "iwl-io.h"
#include "iwl-modparams.h"
#include "iwl-debug.h"
#include "agn.h"
#include "dev.h"
#include "commands.h"
#include "tt.h"
/* default Thermal Throttling transaction table
* Current state | Throttling Down | Throttling Up
* = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
* Condition Nxt State Condition Nxt State Condition Nxt State
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
* IWL_TI_0 T > = 114 CT_KILL 114 > T > = 105 TI_1 N / A N / A
* IWL_TI_1 T > = 114 CT_KILL 114 > T > = 110 TI_2 T < = 95 TI_0
* IWL_TI_2 T > = 114 CT_KILL T < = 100 TI_1
* IWL_CT_KILL N / A N / A N / A N / A T < = 95 TI_0
* = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
*/
static const struct iwl_tt_trans tt_range_0[IWL_TI_STATE_MAX - 1 ] = {
{IWL_TI_0, IWL_ABSOLUTE_ZERO, 104 },
{IWL_TI_1, 105 , CT_KILL_THRESHOLD - 1 },
{IWL_TI_CT_KILL, CT_KILL_THRESHOLD, IWL_ABSOLUTE_MAX}
};
static const struct iwl_tt_trans tt_range_1[IWL_TI_STATE_MAX - 1 ] = {
{IWL_TI_0, IWL_ABSOLUTE_ZERO, 95 },
{IWL_TI_2, 110 , CT_KILL_THRESHOLD - 1 },
{IWL_TI_CT_KILL, CT_KILL_THRESHOLD, IWL_ABSOLUTE_MAX}
};
static const struct iwl_tt_trans tt_range_2[IWL_TI_STATE_MAX - 1 ] = {
{IWL_TI_1, IWL_ABSOLUTE_ZERO, 100 },
{IWL_TI_CT_KILL, CT_KILL_THRESHOLD, IWL_ABSOLUTE_MAX},
{IWL_TI_CT_KILL, CT_KILL_THRESHOLD, IWL_ABSOLUTE_MAX}
};
static const struct iwl_tt_trans tt_range_3[IWL_TI_STATE_MAX - 1 ] = {
{IWL_TI_0, IWL_ABSOLUTE_ZERO, CT_KILL_EXIT_THRESHOLD},
{IWL_TI_CT_KILL, CT_KILL_EXIT_THRESHOLD + 1 , IWL_ABSOLUTE_MAX},
{IWL_TI_CT_KILL, CT_KILL_EXIT_THRESHOLD + 1 , IWL_ABSOLUTE_MAX}
};
/* Advance Thermal Throttling default restriction table */
static const struct iwl_tt_restriction restriction_range[IWL_TI_STATE_MAX] = {
{IWL_ANT_OK_MULTI, IWL_ANT_OK_MULTI, true },
{IWL_ANT_OK_SINGLE, IWL_ANT_OK_MULTI, true },
{IWL_ANT_OK_SINGLE, IWL_ANT_OK_SINGLE, false },
{IWL_ANT_OK_NONE, IWL_ANT_OK_NONE, false }
};
bool iwl_tt_is_low_power_state(struct iwl_priv *priv)
{
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
if (tt->state >= IWL_TI_1)
return true ;
return false ;
}
u8 iwl_tt_current_power_mode(struct iwl_priv *priv)
{
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
return tt->tt_power_mode;
}
bool iwl_ht_enabled(struct iwl_priv *priv)
{
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
struct iwl_tt_restriction *restriction;
if (!priv->thermal_throttle.advanced_tt)
return true ;
restriction = tt->restriction + tt->state;
return restriction->is_ht;
}
static bool iwl_within_ct_kill_margin(struct iwl_priv *priv)
{
s32 temp = priv->temperature; /* degrees CELSIUS except specified */
bool within_margin = false ;
if (!priv->thermal_throttle.advanced_tt)
within_margin = ((temp + IWL_TT_CT_KILL_MARGIN) >=
CT_KILL_THRESHOLD_LEGACY) ? true : false ;
else
within_margin = ((temp + IWL_TT_CT_KILL_MARGIN) >=
CT_KILL_THRESHOLD) ? true : false ;
return within_margin;
}
bool iwl_check_for_ct_kill(struct iwl_priv *priv)
{
bool is_ct_kill = false ;
if (iwl_within_ct_kill_margin(priv)) {
iwl_tt_enter_ct_kill(priv);
is_ct_kill = true ;
}
return is_ct_kill;
}
enum iwl_antenna_ok iwl_tx_ant_restriction(struct iwl_priv *priv)
{
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
struct iwl_tt_restriction *restriction;
if (!priv->thermal_throttle.advanced_tt)
return IWL_ANT_OK_MULTI;
restriction = tt->restriction + tt->state;
return restriction->tx_stream;
}
#define CT_KILL_EXIT_DURATION (5 ) /* 5 seconds duration */
#define CT_KILL_WAITING_DURATION (300 ) /* 300ms duration */
/*
* toggle the bit to wake up uCode and check the temperature
* if the temperature is below CT , uCode will stay awake and send card
* state notification with CT_KILL bit clear to inform Thermal Throttling
* Management to change state . Otherwise , uCode will go back to sleep
* without doing anything , driver should continue the 5 seconds timer
* to wake up uCode for temperature check until temperature drop below CT
*/
static void iwl_tt_check_exit_ct_kill(struct timer_list *t)
{
struct iwl_priv *priv = timer_container_of(priv, t,
thermal_throttle.ct_kill_exit_tm);
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return ;
if (tt->state == IWL_TI_CT_KILL) {
if (priv->thermal_throttle.ct_kill_toggle) {
iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_CLR,
CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
priv->thermal_throttle.ct_kill_toggle = false ;
} else {
iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_SET,
CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
priv->thermal_throttle.ct_kill_toggle = true ;
}
iwl_read32(priv->trans, CSR_UCODE_DRV_GP1);
if (iwl_trans_grab_nic_access(priv->trans))
iwl_trans_release_nic_access(priv->trans);
/* Reschedule the ct_kill timer to occur in
* CT_KILL_EXIT_DURATION seconds to ensure we get a
* thermal update */
IWL_DEBUG_TEMP(priv, "schedule ct_kill exit timer\n" );
mod_timer(&priv->thermal_throttle.ct_kill_exit_tm,
jiffies + CT_KILL_EXIT_DURATION * HZ);
}
}
static void iwl_perform_ct_kill_task(struct iwl_priv *priv,
bool stop)
{
if (stop) {
IWL_DEBUG_TEMP(priv, "Stop all queues\n" );
if (priv->mac80211_registered)
ieee80211_stop_queues(priv->hw);
IWL_DEBUG_TEMP(priv,
"Schedule 5 seconds CT_KILL Timer\n" );
mod_timer(&priv->thermal_throttle.ct_kill_exit_tm,
jiffies + CT_KILL_EXIT_DURATION * HZ);
} else {
IWL_DEBUG_TEMP(priv, "Wake all queues\n" );
if (priv->mac80211_registered)
ieee80211_wake_queues(priv->hw);
}
}
static void iwl_tt_ready_for_ct_kill(struct timer_list *t)
{
struct iwl_priv *priv = timer_container_of(priv, t,
thermal_throttle.ct_kill_waiting_tm);
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return ;
/* temperature timer expired, ready to go into CT_KILL state */
if (tt->state != IWL_TI_CT_KILL) {
IWL_DEBUG_TEMP(priv, "entering CT_KILL state when "
"temperature timer expired\n" );
tt->state = IWL_TI_CT_KILL;
set_bit(STATUS_CT_KILL, &priv->status);
iwl_perform_ct_kill_task(priv, true );
}
}
static void iwl_prepare_ct_kill_task(struct iwl_priv *priv)
{
IWL_DEBUG_TEMP(priv, "Prepare to enter IWL_TI_CT_KILL\n" );
/* make request to retrieve statistics information */
iwl_send_statistics_request(priv, 0 , false );
/* Reschedule the ct_kill wait timer */
mod_timer(&priv->thermal_throttle.ct_kill_waiting_tm,
jiffies + msecs_to_jiffies(CT_KILL_WAITING_DURATION));
}
#define IWL_MINIMAL_POWER_THRESHOLD (CT_KILL_THRESHOLD_LEGACY)
#define IWL_REDUCED_PERFORMANCE_THRESHOLD_2 (100 )
#define IWL_REDUCED_PERFORMANCE_THRESHOLD_1 (90 )
/*
* Legacy thermal throttling
* 1 ) Avoid NIC destruction due to high temperatures
* Chip will identify dangerously high temperatures that can
* harm the device and will power down
* 2 ) Avoid the NIC power down due to high temperature
* Throttle early enough to lower the power consumption before
* drastic steps are needed
*/
static void iwl_legacy_tt_handler(struct iwl_priv *priv, s32 temp, bool force)
{
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
enum iwl_tt_state old_state;
#ifdef CONFIG_IWLWIFI_DEBUG
if ((tt->tt_previous_temp) &&
(temp > tt->tt_previous_temp) &&
((temp - tt->tt_previous_temp) >
IWL_TT_INCREASE_MARGIN)) {
IWL_DEBUG_TEMP(priv,
"Temperature increase %d degree Celsius\n" ,
(temp - tt->tt_previous_temp));
}
#endif
old_state = tt->state;
/* in Celsius */
if (temp >= IWL_MINIMAL_POWER_THRESHOLD)
tt->state = IWL_TI_CT_KILL;
else if (temp >= IWL_REDUCED_PERFORMANCE_THRESHOLD_2)
tt->state = IWL_TI_2;
else if (temp >= IWL_REDUCED_PERFORMANCE_THRESHOLD_1)
tt->state = IWL_TI_1;
else
tt->state = IWL_TI_0;
#ifdef CONFIG_IWLWIFI_DEBUG
tt->tt_previous_temp = temp;
#endif
/* stop ct_kill_waiting_tm timer */
timer_delete_sync(&priv->thermal_throttle.ct_kill_waiting_tm);
if (tt->state != old_state) {
switch (tt->state) {
case IWL_TI_0:
/*
* When the system is ready to go back to IWL_TI_0
* we only have to call iwl_power_update_mode ( ) to
* do so .
*/
break ;
case IWL_TI_1:
tt->tt_power_mode = IWL_POWER_INDEX_3;
break ;
case IWL_TI_2:
tt->tt_power_mode = IWL_POWER_INDEX_4;
break ;
default :
tt->tt_power_mode = IWL_POWER_INDEX_5;
break ;
}
mutex_lock(&priv->mutex);
if (old_state == IWL_TI_CT_KILL)
clear_bit(STATUS_CT_KILL, &priv->status);
if (tt->state != IWL_TI_CT_KILL &&
iwl_power_update_mode(priv, true )) {
/* TT state not updated
* try again during next temperature read
*/
if (old_state == IWL_TI_CT_KILL)
set_bit(STATUS_CT_KILL, &priv->status);
tt->state = old_state;
IWL_ERR(priv, "Cannot update power mode, "
"TT state not updated\n" );
} else {
if (tt->state == IWL_TI_CT_KILL) {
if (force) {
set_bit(STATUS_CT_KILL, &priv->status);
iwl_perform_ct_kill_task(priv, true );
} else {
iwl_prepare_ct_kill_task(priv);
tt->state = old_state;
}
} else if (old_state == IWL_TI_CT_KILL) {
iwl_perform_ct_kill_task(priv, false );
}
IWL_DEBUG_TEMP(priv, "Temperature state changed %u\n" ,
tt->state);
IWL_DEBUG_TEMP(priv, "Power Index change to %u\n" ,
tt->tt_power_mode);
}
mutex_unlock(&priv->mutex);
}
}
/*
* Advance thermal throttling
* 1 ) Avoid NIC destruction due to high temperatures
* Chip will identify dangerously high temperatures that can
* harm the device and will power down
* 2 ) Avoid the NIC power down due to high temperature
* Throttle early enough to lower the power consumption before
* drastic steps are needed
* Actions include relaxing the power down sleep thresholds and
* decreasing the number of TX streams
* 3 ) Avoid throughput performance impact as much as possible
*
* = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
* Condition Nxt State Condition Nxt State Condition Nxt State
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
* IWL_TI_0 T > = 114 CT_KILL 114 > T > = 105 TI_1 N / A N / A
* IWL_TI_1 T > = 114 CT_KILL 114 > T > = 110 TI_2 T < = 95 TI_0
* IWL_TI_2 T > = 114 CT_KILL T < = 100 TI_1
* IWL_CT_KILL N / A N / A N / A N / A T < = 95 TI_0
* = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
*/
static void iwl_advance_tt_handler(struct iwl_priv *priv, s32 temp, bool force)
{
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
int i;
bool changed = false ;
enum iwl_tt_state old_state;
struct iwl_tt_trans *transaction;
old_state = tt->state;
for (i = 0 ; i < IWL_TI_STATE_MAX - 1 ; i++) {
/* based on the current TT state,
* find the curresponding transaction table
* each table has ( IWL_TI_STATE_MAX - 1 ) entries
* tt - > transaction + ( ( old_state * ( IWL_TI_STATE_MAX - 1 ) )
* will advance to the correct table .
* then based on the current temperature
* find the next state need to transaction to
* go through all the possible ( IWL_TI_STATE_MAX - 1 ) entries
* in the current table to see if transaction is needed
*/
transaction = tt->transaction +
((old_state * (IWL_TI_STATE_MAX - 1 )) + i);
if (temp >= transaction->tt_low &&
temp <= transaction->tt_high) {
#ifdef CONFIG_IWLWIFI_DEBUG
if ((tt->tt_previous_temp) &&
(temp > tt->tt_previous_temp) &&
((temp - tt->tt_previous_temp) >
IWL_TT_INCREASE_MARGIN)) {
IWL_DEBUG_TEMP(priv,
"Temperature increase %d "
"degree Celsius\n" ,
(temp - tt->tt_previous_temp));
}
tt->tt_previous_temp = temp;
#endif
if (old_state !=
transaction->next_state) {
changed = true ;
tt->state =
transaction->next_state;
}
break ;
}
}
/* stop ct_kill_waiting_tm timer */
timer_delete_sync(&priv->thermal_throttle.ct_kill_waiting_tm);
if (changed) {
if (tt->state >= IWL_TI_1) {
/* force PI = IWL_POWER_INDEX_5 in the case of TI > 0 */
tt->tt_power_mode = IWL_POWER_INDEX_5;
if (!iwl_ht_enabled(priv)) {
struct iwl_rxon_context *ctx;
for_each_context(priv, ctx) {
struct iwl_rxon_cmd *rxon;
rxon = &ctx->staging;
/* disable HT */
rxon->flags &= ~(
RXON_FLG_CHANNEL_MODE_MSK |
RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK |
RXON_FLG_HT40_PROT_MSK |
RXON_FLG_HT_PROT_MSK);
}
} else {
/* check HT capability and set
* according to the system HT capability
* in case get disabled before */
iwl_set_rxon_ht(priv, &priv->current_ht_config);
}
} else {
/*
* restore system power setting - - it will be
* recalculated automatically .
*/
/* check HT capability and set
* according to the system HT capability
* in case get disabled before */
iwl_set_rxon_ht(priv, &priv->current_ht_config);
}
mutex_lock(&priv->mutex);
if (old_state == IWL_TI_CT_KILL)
clear_bit(STATUS_CT_KILL, &priv->status);
if (tt->state != IWL_TI_CT_KILL &&
iwl_power_update_mode(priv, true )) {
/* TT state not updated
* try again during next temperature read
*/
IWL_ERR(priv, "Cannot update power mode, "
"TT state not updated\n" );
if (old_state == IWL_TI_CT_KILL)
set_bit(STATUS_CT_KILL, &priv->status);
tt->state = old_state;
} else {
IWL_DEBUG_TEMP(priv,
"Thermal Throttling to new state: %u\n" ,
tt->state);
if (old_state != IWL_TI_CT_KILL &&
tt->state == IWL_TI_CT_KILL) {
if (force) {
IWL_DEBUG_TEMP(priv,
"Enter IWL_TI_CT_KILL\n" );
set_bit(STATUS_CT_KILL, &priv->status);
iwl_perform_ct_kill_task(priv, true );
} else {
tt->state = old_state;
iwl_prepare_ct_kill_task(priv);
}
} else if (old_state == IWL_TI_CT_KILL &&
tt->state != IWL_TI_CT_KILL) {
IWL_DEBUG_TEMP(priv, "Exit IWL_TI_CT_KILL\n" );
iwl_perform_ct_kill_task(priv, false );
}
}
mutex_unlock(&priv->mutex);
}
}
/* Card State Notification indicated reach critical temperature
* if PSP not enable , no Thermal Throttling function will be performed
* just set the GP1 bit to acknowledge the event
* otherwise , go into IWL_TI_CT_KILL state
* since Card State Notification will not provide any temperature reading
* for Legacy mode
* so just pass the CT_KILL temperature to iwl_legacy_tt_handler ( )
* for advance mode
* pass CT_KILL_THRESHOLD + 1 to make sure move into IWL_TI_CT_KILL state
*/
static void iwl_bg_ct_enter(struct work_struct *work)
{
struct iwl_priv *priv = container_of(work, struct iwl_priv, ct_enter);
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return ;
if (!iwl_is_ready(priv))
return ;
if (tt->state != IWL_TI_CT_KILL) {
IWL_ERR(priv, "Device reached critical temperature "
"- ucode going to sleep!\n" );
if (!priv->thermal_throttle.advanced_tt)
iwl_legacy_tt_handler(priv,
IWL_MINIMAL_POWER_THRESHOLD,
true );
else
iwl_advance_tt_handler(priv,
CT_KILL_THRESHOLD + 1 , true );
}
}
/* Card State Notification indicated out of critical temperature
* since Card State Notification will not provide any temperature reading
* so pass the IWL_REDUCED_PERFORMANCE_THRESHOLD_2 temperature
* to iwl_legacy_tt_handler ( ) to get out of IWL_CT_KILL state
*/
static void iwl_bg_ct_exit(struct work_struct *work)
{
struct iwl_priv *priv = container_of(work, struct iwl_priv, ct_exit);
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return ;
if (!iwl_is_ready(priv))
return ;
/* stop ct_kill_exit_tm timer */
timer_delete_sync(&priv->thermal_throttle.ct_kill_exit_tm);
if (tt->state == IWL_TI_CT_KILL) {
IWL_ERR(priv,
"Device temperature below critical"
"- ucode awake!\n" );
/*
* exit from CT_KILL state
* reset the current temperature reading
*/
priv->temperature = 0 ;
if (!priv->thermal_throttle.advanced_tt)
iwl_legacy_tt_handler(priv,
IWL_REDUCED_PERFORMANCE_THRESHOLD_2,
true );
else
iwl_advance_tt_handler(priv, CT_KILL_EXIT_THRESHOLD,
true );
}
}
void iwl_tt_enter_ct_kill(struct iwl_priv *priv)
{
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return ;
IWL_DEBUG_TEMP(priv, "Queueing critical temperature enter.\n" );
queue_work(priv->workqueue, &priv->ct_enter);
}
void iwl_tt_exit_ct_kill(struct iwl_priv *priv)
{
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return ;
IWL_DEBUG_TEMP(priv, "Queueing critical temperature exit.\n" );
queue_work(priv->workqueue, &priv->ct_exit);
}
static void iwl_bg_tt_work(struct work_struct *work)
{
struct iwl_priv *priv = container_of(work, struct iwl_priv, tt_work);
s32 temp = priv->temperature; /* degrees CELSIUS except specified */
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return ;
if (!priv->thermal_throttle.advanced_tt)
iwl_legacy_tt_handler(priv, temp, false );
else
iwl_advance_tt_handler(priv, temp, false );
}
void iwl_tt_handler(struct iwl_priv *priv)
{
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return ;
IWL_DEBUG_TEMP(priv, "Queueing thermal throttling work.\n" );
queue_work(priv->workqueue, &priv->tt_work);
}
/* Thermal throttling initialization
* For advance thermal throttling :
* Initialize Thermal Index and temperature threshold table
* Initialize thermal throttling restriction table
*/
void iwl_tt_initialize(struct iwl_priv *priv)
{
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
int size = sizeof (struct iwl_tt_trans) * (IWL_TI_STATE_MAX - 1 );
struct iwl_tt_trans *transaction;
IWL_DEBUG_TEMP(priv, "Initialize Thermal Throttling\n" );
memset(tt, 0 , sizeof (struct iwl_tt_mgmt));
tt->state = IWL_TI_0;
timer_setup(&priv->thermal_throttle.ct_kill_exit_tm,
iwl_tt_check_exit_ct_kill, 0 );
timer_setup(&priv->thermal_throttle.ct_kill_waiting_tm,
iwl_tt_ready_for_ct_kill, 0 );
/* setup deferred ct kill work */
INIT_WORK(&priv->tt_work, iwl_bg_tt_work);
INIT_WORK(&priv->ct_enter, iwl_bg_ct_enter);
INIT_WORK(&priv->ct_exit, iwl_bg_ct_exit);
if (priv->lib->adv_thermal_throttle) {
IWL_DEBUG_TEMP(priv, "Advanced Thermal Throttling\n" );
tt->restriction = kcalloc(IWL_TI_STATE_MAX,
sizeof (struct iwl_tt_restriction),
GFP_KERNEL);
tt->transaction = kcalloc(IWL_TI_STATE_MAX *
(IWL_TI_STATE_MAX - 1 ),
sizeof (struct iwl_tt_trans),
GFP_KERNEL);
if (!tt->restriction || !tt->transaction) {
IWL_ERR(priv, "Fallback to Legacy Throttling\n" );
priv->thermal_throttle.advanced_tt = false ;
kfree(tt->restriction);
tt->restriction = NULL;
kfree(tt->transaction);
tt->transaction = NULL;
} else {
transaction = tt->transaction +
(IWL_TI_0 * (IWL_TI_STATE_MAX - 1 ));
memcpy(transaction, &tt_range_0[0 ], size);
transaction = tt->transaction +
(IWL_TI_1 * (IWL_TI_STATE_MAX - 1 ));
memcpy(transaction, &tt_range_1[0 ], size);
transaction = tt->transaction +
(IWL_TI_2 * (IWL_TI_STATE_MAX - 1 ));
memcpy(transaction, &tt_range_2[0 ], size);
transaction = tt->transaction +
(IWL_TI_CT_KILL * (IWL_TI_STATE_MAX - 1 ));
memcpy(transaction, &tt_range_3[0 ], size);
size = sizeof (struct iwl_tt_restriction) *
IWL_TI_STATE_MAX;
memcpy(tt->restriction,
&restriction_range[0 ], size);
priv->thermal_throttle.advanced_tt = true ;
}
} else {
IWL_DEBUG_TEMP(priv, "Legacy Thermal Throttling\n" );
priv->thermal_throttle.advanced_tt = false ;
}
}
/* cleanup thermal throttling management related memory and timer */
void iwl_tt_exit(struct iwl_priv *priv)
{
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
/* stop ct_kill_exit_tm timer if activated */
timer_delete_sync(&priv->thermal_throttle.ct_kill_exit_tm);
/* stop ct_kill_waiting_tm timer if activated */
timer_delete_sync(&priv->thermal_throttle.ct_kill_waiting_tm);
cancel_work_sync(&priv->tt_work);
cancel_work_sync(&priv->ct_enter);
cancel_work_sync(&priv->ct_exit);
if (priv->thermal_throttle.advanced_tt) {
/* free advance thermal throttling memory */
kfree(tt->restriction);
tt->restriction = NULL;
kfree(tt->transaction);
tt->transaction = NULL;
}
}
Messung V0.5 in Prozent C=95 H=100 G=97
¤ Dauer der Verarbeitung: 0.19 Sekunden
(vorverarbeitet am 2026-10-11)
¤
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